Supported ENV variables

On first run of container you can use following ENV variables for Mozilla Syncerver configuration:

PUBLIC_URL=<http[s]://.../> - public URL of your server, i.e. the URL as seen by Firefox. Default: http://<container_hostname>/.

Firefox configuration

To configure desktop Firefox to talk to your new Sync server, go to about:config, search for identity.sync.tokenserver.uri and change its value to the URL of your server with a path of token/1.0/sync/1.5: